Arizona Attorney General Kris Mayes is joining a coalition of 28 states in a filing supporting a Federal Communications rule designed to curb robocalls.

The move is being undertaken after the U.S. Court of Appeals in the Eleventh Circuit recently vacated the rule saying the FCC lacked the authority to issue it.

The One-to-One Consent Rule, adopted by the FCC in late 2023, requires telemarketers and lead generators to obtain explicit consent from consumers that they wish to be contacted before they make contact or sell their contact information. It also stops “blanket consent,” which would have given consent to multiple businesses.

“We’re seeing more robocalls than ever, and, in addition to being extremely annoying for Arizona consumers, they’re also a gateway for fraud and consumer scams to try to drain millions of dollars from Arizonans hard-earned savings accounts each year,” Mayes said in a press release. “It would be nonsensical to rid of one of the only nationwide enforcement tools that aims to shut the spigot of illegal robocalls.”

Arizona ranks third in the U.S. for robocall complaints, according to a 2024 study by Numberbarn.com, and Phoenix and Tucson are in the top 10 cities for the number of robocall complaints.